November 24, 2022

      AVALANCHE ACTIVITY:

      Sz 1 Xh Bushrat Wednesday. Xh on Blk produced some Sz 1 dry loose on Nov 21 MfCr.

      Avalanche mitigation on Whister produced Sz 1-2 Xe Xh loose dry-storm slabs, on Nov 21 MfCr.

      A man made/big dump snow avalanche at Holimont Ski Area, NY. Facebook Page

      One missing after an avalanche in Northern India. Article below. Friendship Peak.           Net Pic

     Sz 2 Na Slab avalanche. Bearthoud Pass, CO. 2022/11/20. CAIC Report.        Sam Gifford Pic

       Sz 1.5 Sa Loveland Pass, CO. 2022/11/20. CAIC Report                       Nicholas Hoch Pic

             Sz 1 Sa Dry Loose, PWL. 2022/11/20. Porter Fork, UT. UAC Report.      Ofto Pic

      WEATHER IN THE PAST THREE DAYS:

      Monday Nov 21, 2022. 12:00 Hrs. 0 Deg C with a 5-15 KPH SE wind. High of +2 today.

      Tuesday November 22, 2022. 12:00 Hrs. -1 Deg C with  10-25 KPH ESE wind. -3 at 2180 m.

      Wednesday November 23, 2022. 12:00 Hrs. 0 Deg C with a 10-25 KPH SSW wind at 1860 m.

   

Weather Observations for November 24, 2022 taken at 06:00 Hours.

2280 meters     -2, Winds were 60-75KPH SSW--Horstman Hut

2180 meters     -1, Winds were 45-70 KPH SW-Whistler Peak

1860 meters    +1, Winds were 20-40 KPH S--Rendezvous  

1835 meters    +2, Winds were 20-50 KPH S--Round House

1650 meters    +3, 0.0 mm in 12 Hrs, 0.0 mm in 24 Hrs. Base 72 cm--Pig Alley

1570 meters      0, 0.0 mm in 12 Hrs, 0.0 mm in 24 Hrs. Base 32 cm--Catskinner

  660 meters    +1, Valley Temp, Max temp Yesterday was +3.9, 0.0 mm of precip yesterday. 

      As of 07:15 Hrs we have broken cloud and unlimited visibility.

FORECAST:

Dirty ridging again today with mostly cloudy conditions in a Westerly flow aloft. A wet warm windy frontal band arrives tonight with the freezing level possibly spiking at 2400 m.  Fingers crossed it cuts out at 2000 m. Front pushes through into Friday afternoon with cooler temperatures in its wake. Frontal band Saturday with snow in the forecast. Dry Sunday into Monday with a series of frontal bands with seasonable temperatures, following into mid week. Update tomorrow am.  Guesstimates: 12-18 mm by Friday am, 2-6 cm by Saturday am, 10-20 cm by Sunday am.

       GOES IR Image from this am.

       GOES 17 ABI Image 2022/11/24. 05:00 Hrs.

         Warm air flowing in from the high, low moving down the coast for tonight.

       Front will slide into our zone later this pm. Wet, warm, and windy tonight.

      Westerly flow aloft.

         Some lingering precipitation in the am Friday, dry and cooler by the afternoon . 

      Warm front shifts south by Friday afternoon. 

        Cold front for Saturday, cooler temperatures. 

      Periods of light/moderate snowfall Saturday. 

           Dry and cold Sunday. May even see a few sunny breaks.

      INFORMATION & OBSERVATIONS:

      Sunrise was at 07:35 Hrs Monday. -1 Deg C with a 20-25 KPH SW wind at 2280 m.

      Ice art on Green Lake. Monday am.

      Wind, waves, and lower water in Green Lake! High in the valley was +3.5 low of -1.0.

      Windy Image Monday 17:00 Hrs. Looks promising, time will tell! 

      Tuesday 06:00 Hrs. 4.5 mm recorded at 1650m . -1 Deg C. High of +2 in the past 24 Hrs.

      Snowing in the village Tuesday afternoon. High of + 3.3 Deg C, low of 0 Deg C.

 

       Tuesday 12:00 Hrs. 13.7 mm at 1560 m. +1 Deg C. 74 Cm Base.

      Tuesdays system pushed through fairly quickly. Dry until Thursday evening..  Looks Juicy.

      08:00 Hrs Wednesday. -4 Deg C with a 15-25 KPH SE wind.

     Wednesday am. Great conditions with good visibility. Dry snow in the am.

      More than 32 cm on the Castle Picnic Table.

      12:00 Hrs 1570 meters (Catskinner Weather Plot) -2 Deg C with a 32 cm Base. No New

      Eventually the valley cloud rose, moist and warm air aloft.

LOCAL MIN REPORTS:

Cypress, Black Mountain: Nov 20, 2022

Roughing it for Rethel: Nov 20, 2022

VIDEOS:

Early Season Avalanche Conditions: AvyBites

Touchy Conditions: Trashed

Big Air to: Over the bars

ARTICLES:

Cornices are always an issue: Siberia

Trekker missing after avalanche near Friendship Peak: Northern India

Avalanche closes I-70 near Loveland Pass Ski Area Monday, Vail Pass Skiers trigger slide Sunday: Colorado

Characterizing snow instability with avalanche problem types from snow cover simulation: Science Direct

Canada's Mountains feeling the heat of climate change: UBC

November 21, 2022

    AVALANCHE ACTIVITY:

      Three soldiers have died in an avalanche in Northern India. Article below.

      Sa Wet Loose. 2022/11/17. Turnagain, AK. CNFAIC Report.                                    Nate Ray Pic

      Sz 2 Sa 2022/11/19. Summit County, CO. Click> CAIC Report.                               CAIC Pic

      Sz 1 Skier Accidental (Sa) 2022/11/16. Upper Red Pine, Utah. UAC Report.               JT Pic

     Sz 1 Remotely triggered windslab, 2022/11/16. Loveland Pass, CO. CAIC Report.  AM Pic

      Old wet loose glide avalanches, glide cracks. 2022/11/15-17. Brandywine Area.        WF Pic

     WEATHER IN THE PAST 4 DAYS:

      Thursday November 17, 2022. 12:00 Hrs. -7 Deg C with a 10-25 KPH NNE wind.

      Friday November 18, 2022. 13:00 Hrs. +5 Deg C with a 0-5 KPH SW breeze. +1 at 660 m.

      Saturday November 19, 2022. 12:00 Hrs. +6 Deg C with a 0-5 KPH South breeze.

      Sunday November 20, 2022. 12:00 Hrs. +3 Deg C with a 5-10 KPH South breeze.

   

Weather Observations for November 21, 2022 taken at 06:00 Hours.

2180 meters    -1, Winds were 20-25 KPH W--Whistler Peak 

1835 meters    -2, Winds were   5-10 KPH NNE--Round House

1650 meters    -1, 0.7 mm in 12 Hrs, 0.07mm in 24 Hrs. 52 cm Base --Pig Alley

  660 meters     0, Valley Temp, Max temp Yesterday was 0, 0.0 mm of precip yesterday.

      As of 07:00 Hrs this am we have overcast skies and variable visibility.

 

      0.7 mm recorded in the precipitation gauge at 1650 m by 06:00 Hrs Monday.

FORECAST:

Weak front in a Westerly flow aloft will bring periods of light precipitation this pm, with a wetter frontal band arriving tonight with periods of moderate precipitation and gusty winds. Cloudy for most of the day until the precipitation arrives later this pm. Freezing level will hover in the 1200-1400 m range. Short lived front dries out by Tuesday afternoon with another weak impulse Wednesday afternoon.  Looks dry and unsettled for most of opening day with a more potent frontal band arriving Thursday night, with a spike in the FL Thursday. More on that on Thursday. Periods of moderate precipitation Friday with another potent impulse. Another frontal band on Saturday. Some disagreement in the models so more on the rest of the week in Thursdays post. Guesstimates: 8-12 cm above 1200 m by Tuesday am, 15-20 cm above 1200 m by Wednesday am, trace-2 cm above 1200 m by Thursday am, 1-4 mm by Friday am, 20-30 cm by Saturday am. These numbers are for the amounts measured at 1650 m on Whistler Mountain.

      GOES 17 IR Image from this am.

      GOES 17 ABI Image 2022/11/21. 05:00 Hrs.

      Front sliding down the coast will spread increasing cloud cover into our zone today! Warm!

      Cold front sliding down the coast. Should see some precipitation this evening.

      Westerly flow aloft on Monday.

      Low off the coast will send a cold front our way Tuesday. Cool temperatures. FL 1100-1400 m.

       Looks good for Tuesday's storm. Short lived but a nice impulse of snow.

             Weak upper trough with periods of light precipitation Wednesday. 

      Cloudy skies with some precipitation during day light hours Wednesday.

         Dries out Thursday with unsettled weather for opening day. Warmish. FL 2000-2200 m.

      Not sure if it will be this wet Thursday. Some discrepancies in the models.

      Another strong impulse Friday.

      Another impulse on Saturday. 

      INFORMATION & OBSERVATIONS:

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      Spindrift Thursday the 17th. 09:30 Hrs. 35-75 KPH NNE winds at 2280 m.                    WF Pic

    Snowmaking back on track after a few days of inverted temperatures.                               WF Pic

      Alpen Glow Thursday pm. Will look much different in 2 weeks. Storm cycle next week!! WF Pic

      Friday morning, good temperatures in the valley but another weak inversion in the alpine.  WF Pic

      Mamquam Glacier Friday afternoon. High in Squamish was  +8.5 Deg C.                         WF Pic

      Mount Garibaldi Friday afternoon. Many bluebird days.                                                       WF Pic

      Windy Image Friday evening. Still a massive high, low churning away in the Aleutians.

      Making snow in the valley Saturday am. 10:00 Hrs. -5 in the valley. Inversion with +2 at 2280 m.

      Creekside Gondola cable arrived Friday. Stringing it up Saturday am.                                WF Pic

      Cable on Saturday PM.                                                                                                            WF Pic

      Cooling down again at sunset. Saturday.  -4 at 16:30 Hrs. High of -1 with a low of -7 at 660 m.

      Ridge began breaking down Sunday am, clouds began moving in.                                   WF Pic

     Some bears are still active and searching for food!! 3 more sleeps until opening day!!!      WF Pic

      Windy Image Sunday just before noon. The weather pattern is changing!!!

      Making snow on Olympic run Sunday until it warmed up!!!

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LOCAL MIN REPORTS:

Metal Dome: Nov 19, 2022

Brohm Ridge: Nov 18, 2022

Anif Couloir: Nov 18, 2022

Gondola: Nov 18, 2022

MOUNTAIN CONDITIONS REPORT:

Look at the current snowpack, South Coast-Nov 18, 2022: Andrew Councell

VIDEOS:

Sluff Management: AvyBites

Sluff Management: Snowboarding

Good Buddies: Tolerance

Serac Collapse: Tronador, Chile

ARTICLES:

Three soldiers have died in an avalanche: Kashmir

Early Season Conditions: Avalanche Canada

Take the time to prepare for early season turns: Backcountry

Backcountry skiers trigger avalanche on Vail Pass: Colorado

Ice climbers should carry Beacons in avalanche terrain: Gripped

Snowmobile Avalanche Safety--No Limits Motorsports: Nov 22, 2022

Staying Alive Night, Revelstoke Nov 30, 2022: Avalanche Canada

Backcountry Lies we tell ourselves: WildSnow

Increasing the uniformity of teaching content for avalanche prevention throughout Switzerland: SLF